在web2py中传递python数据给javascript

我的问题是。我有以下函数

def index():
    rows=db(db.mylist).select()
    return dict(rows=rows)

所以当我重新加载前视图索引时我想从数据库中检索行并将数据以列表的形式显示给用户

{{for(r in rows)}}
    li.innerhtml={{=rows.task}}
{{pass}}

显然，这不是正确的做法。我想我必须使用json和XML。

这是我正在使用的表

db.define_table(
   'mylist',
   Field('task', 'string')
)
<div class="col-sm-6">
         <div class="panel panel-default">
             <div class="panel-heading center " style="color: black; font-style: inherit">
                 <form>
                 Task:
                <input name="name" id="task"  />
                     <button type="button" class="btn btn-success btn-sm" onclick=add(),ajax('{{=URL('default','insert_task')}}',['name'])  >add</button>
                     </form>
             </div>
              <div class="panel-body center">
                  <ul id="list" class="list-group">  </ul>
              </div>
         </div>
     </div>
 </div>

var ul = document.getElementById("list");
var lastId=0;
function add()
    {
        if(!isBlank(document.getElementById("task").value)) {

            var iCon = document.createElement('div'); //create a div container
            var dbtMenu=document.createElement('div');
            var li = document.createElement("il");  //create a list-element
            var closeSpan = document.createElement("span"); //create a span for badge attribute
            var ClickListState=0;
            dbtMenu.setAttribute("class","container");
            //dbtMenu.appendChild(dropDownList);
            li.setAttribute('id',lastId); // set an attribute for id
            iCon.className = "glyphicon glyphicon-remove"; // image for remove button
            closeSpan.setAttribute("class", "badge"); //create a new attribute for span
            closeSpan.appendChild(iCon); // put it in the span set
            iCon.addEventListener("click",function(){var element=document.getElementById(li.getAttribute('id'));
                                                    element.parentNode.removeChild(element);}); //functionlity
            li.innerHTML = document.getElementById('task').value;
            var value=document.getElementById('task').value;
            var pass= document.getElementById('task').value;
            li.setAttribute("class", "list-group-item hover-yellow");
            li.addEventListener('click',function() {if(ClickListState==0){li.style.backgroundColor="red"; ClickListState++;}
                                                    else {li.style.backgroundColor="white"; ClickListState--; }});
            li.appendChild(closeSpan);
            lastId++;
            ul.appendChild(li);
        }
    }
function update()
    {
            {{for r in rows:}}
            var iCon = document.createElement('div'); //create a div container
            var dbtMenu = document.createElement('div');
            var li = document.createElement("il");  //create a list-element
            var closeSpan = document.createElement("span"); //create a span for badge attribute
            var ClickListState = 0;
            dbtMenu.setAttribute("class", "container");
            //dbtMenu.appendChild(dropDownList);
            li.setAttribute('id', lastId); // set an attribute for id
            iCon.className = "glyphicon glyphicon-remove"; // image for remove button
            closeSpan.setAttribute("class", "badge"); //create a new attribute for span
            closeSpan.appendChild(iCon); // put it in the span set
            iCon.addEventListener("click", function () {
                var element = document.getElementById(li.getAttribute('id'));
                element.parentNode.removeChild(element);
            });
           // var t ={#{=XML(response.json(r.task))}}
                    li.innerHTML = "t";
            var value = document.getElementById('task').value;
            var pass = document.getElementById('task').value;
            li.setAttribute("class", "list-group-item hover-yellow");
            li.addEventListener('click', function () {
                if (ClickListState == 0) {
                    li.style.backgroundColor = "red";
                    ClickListState++;
                }
                else {
                    li.style.backgroundColor = "white";
                    ClickListState--;
                }
            });
            li.appendChild(closeSpan);
            lastId++;
            ul.appendChild(li);
            {{pass}}
    }
    update();